The strange objects witnessed by Navy pilots remain unexplained, but officials briefed on a new study say they are not secret technology from a classified American program.

It seems safe to say that Chris Hadfield probably doesn't have one of those X-Files "I want to believe" UFO posters on any of his walls. On Sunday the Canadian astronaut, who commanded the International Space Station and recorded the famous microgravity rendition of David Bowie's Space Oddity, spit some fire at true believers who see a link between UFOs or UAPs (for "unidentified aerial phenomena" in the newish military parlance) and some sort of alien intelligence.

ABC News contributor Steve Ganyard and Lue Elizondo, former director of the Advanced Aerospace Threat Identification Program, discuss an upcoming Pentagon report on "unidentified aerial phenomena."

For years, the US government largely ignored reports of mysterious flying objects seen moving through restricted military airspace but it is now slowly beginning to acknowledge that UFOs, which the Pentagon refers to as unidentified aerial phenomena, are real.

Cmdr. Dave Fravor and Lt. Cmdr. Alex Dietrich were training with the USS Nimitz Carrier Strike Group when a UAP encounter occurred over the Pacific Ocean.

As part of the newly passed COVID-19 relief legislation, lawmakers are demanding answers from U.S. intelligence agencies and the Defense Department on the potential existence of UFOs and other unidentified aerial phenomena.

The move comes days after Japan and the United States spoke about unidentified aerial phenomena.

Among the 5,000 sightings recorded this year, 20 percent of them occurred in April – the height of the COVID-19 crisis and lockdown, according to the news outlet.

For nearly 30 years, John Shepherd broadcast freewheeling records from all over the world, to what he hoped would be an interstellar audience.

"The aerial phenomena observed in the videos remain characterized as 'unidentified,'" a spokeswoman said.

The government can't keep its story straight about its involvement with UFOs. After a yearlong investigation, we reveal the staggering truth.

The U.K.'s Ministry of Defense will publish secret UFO reports for the first time.

From the early 1950s until 2009, a department in the United Kingdom's Ministry of Defence (MoD) documented and investigated reports of UFOs. Now, more than a decade after the program ended, many of those formerly classified files about UFO sightings will be made available to the public for the first time.

With the Navy's recent revelation that its pilots have been regularly spotting unidentified flying objects, some of those in the UFO community who were once thought crazy now have some concrete evidence to point to. And the regular spate of mainstream news stories about UFO sightings has inspired a new generation of UFO hunters and researchers.

A top-secret U.S. government program investigating UFOs hid in plain sight for years; some of its most incredible stories will now be heard for the first time.

No one at the Pentagon is saying that the objects are extraterrestrial, but the Navy has issued new classified guidance for reporting unexplained aerial phenomena.

Someone or something appears to have some extremely advanced technology and the Pentagon is actively changing the nature of the conversation about it. By Tyler Rogoway.

The service says it has also "provided a series of briefings by senior Naval Intelligence officials as well as aviators who reported hazards to aviation safety."

Mingling with wariness and wonder at a conference devoted to “Ancient Aliens.” By Steven Kurutz.

About 5 percent of all UFO sightings cannot be easily explained by weather or human technology. A physicist argues that there's compelling evidence to justify serious scientific study and that the skeptics should step aside – for the sake of humanity.